give the structure of moses saprophyte
Answers
Answer:
Mosses are bryophytes, primitive plants believed to be among the first to develop the ability to live on land. Mosses have no vascular tubes to transfer water or nutrients, and no true stems or roots. Environmental water sources and absorption limit their size. The University of Massachusetts estimates there are 14,500 moss species growing in different habitats, all having basically the same structure.
Basic Spores
Sporophytes produce hundreds of spores•••
The initial moss plant is a spore given off by the sporophyte that forms at the end of the moss plant’s “stem.” Released spores travel long distances on the wind and remain viable for decades. Spores landing in suitable conditions divide and produce hairy filaments called protonemas, which weave across the growing medium. Sprouting from the spore filaments, gametophytes form, held to the surface by rhizoids.
Main Structure
Mosses are bryophytes, primitive plants believed to be among the first to develop the ability to live on land. Mosses have no vascular tubes to transfer water or nutrients, and no true stems or roots. Environmental water sources and absorption limit their size. The University of Massachusetts estimates there are 14,500 moss species growing in different habitats, all having basically the same structure.
Basic Spores
Sporophytes produce hundreds of spores•••
The initial moss plant is a spore given off by the sporophyte that forms at the end of the moss plant’s “stem.” Released spores travel long distances on the wind and remain viable for decades. Spores landing in suitable conditions divide and produce hairy filaments called protonemas, which weave across the growing medium. Sprouting from the spore filaments, gametophytes form, held to the surface by rhizoids.
Main Structure
Mosses have no true leaves•••
The main moss structure is the gametophyte, a moss’s “stem” and “leaves.” A moss stem (called the axis) supports leaf-like structures (phyllids) that carry out photosynthesis, transforming sunlight into sugars the moss uses for food. Typically arranged in a spiral, moss “leaves” are usually one cell thick with ribs two or more cells thick down their centers. Moss stems end in root-like strands called rhizoids, specialized to hold the moss to its growing surface.
Second-Generation Growth
Sporophytes growing from gametophytes•••
The second moss structure is really a second generation. Moss plants reproduce sexually using separate plants produced at different times. This is indicated in the name endings. “The termination '-phyte' means 'plant,' so the gametophyte is the 'gamete plant' and the sporophyte is the 'spore plant,'” Heino Lepp of the Australian National Botanic Garden reports in his article, “What is a Bryophyte?” Gametophytes are tipped with either inverted cone-shaped areas (archegonia) or male reproductive organs (antheridia). Released sperm (antherizoids) need water since they swim to the archegonium. Sprouting from the gametophyte tip after fertilization, a sporophyte holds itself in place by anchoring a foot in the archegonium